2015 head-to-head · Midsize Car

2015 Mazda 6 vs Toyota Corolla

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

Swap sides
✓ Cheaper to run
$1,453/ year to fuel
32 MPG
✓ Cheaper to run
$1,368/ year to fuel
34 MPG

The 2015 Toyota Corolla is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,368 a year to fuel (34 MPG), versus $1,453 for the 2015 Mazda 6 (32 MPG). That's roughly $85 a year, or about $427 over five years.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Mazda 6
  • Toyota Corolla

Side by side

Mazda 6Toyota Corolla
$1,453 Your annual fuel cost $1,368
32 MPG Combined efficiency 34 MPG
28 MPG City 30 MPG
39 MPG Highway 40 MPG
100 cu ft Passenger volume 98 cu ft
15 cu ft Cargo volume 13 cu ft
280 g/mi Tailpipe CO₂ (g/mi) 263 g/mi
8/10 EPA fuel economy score 8/10
8/10 EPA greenhouse gas score 8/10
Gas Powertrain Gas
Regular gasoline Fuel Regular gasoline
2.5L 4-cyl Engine / motor 1.8L 4-cyl
6-speed automatic Transmission CVT
FWD Drivetrain FWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Mazda 6 vs Toyota Corolla across model years

  • Mazda 6
  • Toyota Corolla

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Per EPA interior volume figures, the Mazda 6 has more cargo space (15 vs. 13 cu ft).

Among 69 2015 midsize cars, the Mazda 6 ranks 17th and the Toyota Corolla 15th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2015 Mazda 6 or the 2015 Toyota Corolla?

Measured by cost to drive, the Toyota Corolla. The Mazda 6 is rated 32 MPG combined and the Toyota Corolla 34 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2015 Mazda 6 vs. the Toyota Corolla per year?

At 15,000 miles a year with $3.10/gal regular gas, about $1,453 for the Mazda 6 and $1,368 for the Toyota Corolla.

Which has more cargo space?

The Mazda 6, with 15 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).

Mazda 6 vs Toyota Corolla in other years

More 2015 comparisons

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